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Finding the Fourth Proportional to 311,592.89, 467,468.18 and 86,953.30

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Solution

The fourth proportional to 311,592.89, 467,468.18 and 86,953.30 is: 130,451.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,592.89 : 467,468.18 = 86,953.30 : x
  2. Step 2: Convert to fraction form
    311,592.89/467,468.18 = 86,953.30/x
  3. Step 3: Cross multiply
    311,592.89x = 467,468.18 × 86,953.30
  4. Step 4: Simplify right side
    311,592.89x = 40,647,900,895.99
  5. Step 5: Solve for x
    x = 40,647,900,895.99/311,592.89
  6. Step 6: Final answer
    x = 130,451.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.